.. _predicate_index:

Predicates
===============

This index lists all entities *declaring* a given predicate. To load an entity providing the predicate that you want to call, always load the library that includes it using the goal ``logtalk_load(library_name(loader))`` instead of loading just the entity. The library loader file ensures that all the required dependencies are also loaded.



``area/1``
----------

.. toctree::
   :maxdepth: 1



* :ref:`ellipse(A,B) <ellipse/2::area/1>`
* :ref:`rectangle(A,B) <rectangle/2::area/1>`

``height/1``
------------

.. toctree::
   :maxdepth: 1



* :ref:`rectangle(A,B) <rectangle/2::height/1>`

``rx/1``
--------

.. toctree::
   :maxdepth: 1



* :ref:`ellipse(A,B) <ellipse/2::rx/1>`

``ry/1``
--------

.. toctree::
   :maxdepth: 1



* :ref:`ellipse(A,B) <ellipse/2::ry/1>`

``width/1``
-----------

.. toctree::
   :maxdepth: 1



* :ref:`rectangle(A,B) <rectangle/2::width/1>`